Cut-out for mufflers of explosive engines



Sept. 18 1923.

l E. BRooKlNs CUT-OUT FOR MUFFLERS oF ExPLosIvE ENGINES Filed May 25,1922 lla IN VEN TOR.

A TTORNEYX.

"Patented Sept. ln-iZE. -V

v Unir si rar :selen isnoonins, or ennnneiin;onnironiiie.

V(nir-currY non iiiurrnnns or n'irnesrvn nneiivns.

-Appiication'aieiiiiay a5,

.To Zlio/710m. im-ey conce/n:

e Beit known that I, EAiiL'BiiooiiiNs, a. citizen Of the United States,residing Vat Glendale, in the county of Los Angeles and State ofCalifornia, have .invented a new and useful improvement in Cut-Uutsrfor`Mufflers of Explosive Engines, of whichthe `following isaspecification.` i 1 invention relatesto what is familiarly 0 lrnown ascut-outs adapted to be arrangedin the exhaust pipe of, a gas engine toAdischarge the burnt gases orexhaust before entering thefmufer.

an efficient'device'oiz this character Yhaving the istructural chai.,cteristics hereinafter more fully described. `'loItliis"endthe deengineinstallations as they are employed on Y the different types ofautomobiles. A. fur- Y ther obiect of the invention is to provide acut-out in which the spring thatV controls Vthe K fia-p or valve is solocated as to avoidl heat interfering with the efficiency er lifethereof, all as will hereinafter more fully appear from thedescriptionto follow and in connection withthe accompanying drawings.

Referring to the said drawings in general terms, Fig. l, isa sideelevation of the eX- haust pipe andinuiiier, and the cut-out in itsrelative position. Fig. 2 is a bottom plan VVview of the cut-out','theexhaust pipe being broken off at each end thereof. F ig. 3 is alongitudinal mid-sectional-view Vofthe device, and Fig. 4 is a crosssectional view.

In a more vparticu-lar description of the invention, thesaine referencecharacters in-.

dicate the saineparts in the drawings.

fl The -housing or body is formed of sheet metal in two parts, upper andlowet; these parts are designated Vby -l--V and 42.- each having flanges--3-V andextending the length'thereof, and iirmlyfunited to -lf'iinclose the Vexhaust pipe Screws '-'(3-Y pass through openings in thesaid flanges and the vtwo parts comprising the housing are made tightaroundsaid pipe by nuts -7-.

,through the opening -9- 'in the lower portion. The portion of theexhaust pipe inclosed by theV device is cut out asat-lt".

Y The objectief the invention is to provide Y The position of the deviceis such as te 1922. Serial No. 583,65.

The lower portion of the housing is extend- Yed down at the sides asshown in Fig. -ito provide the opening --9- in the bottoni. thereofbelowthe opening/in the exhaust pipe andwhich is substantially the length ofthe opening in the exhaust pipe. The

jportion of the metal forming the margin 'llof said opening 9 is tlat'asshown in F ig. 2 to forni a proper seating` surface for'the fiap valve--12- which liesY on the inside of the housinoin lthe lower portionthereof and controls the discharge opening -9-,. The inet-al of thelower part-Q ofrthe housing is biilged downwardly and cross-wise toprovide a seat portion Vfor a shaft lf2/ v 'whichlies across the lowerportion -24- of the housing-and ei;- tends ihrough openings in the sides0f said lower portion. and whereby a suitable bearing for said vshaftisprov'ided. One end of the iiap valve -12- is suitably attached to theshaft -l2- andas the said shaft turns the flap valve raises or lowers.The ends of the said shaft -l2- are extended a suitable distance beyondthe side flanges 3- and .-4- of the housing and either end may have adisk *lifastened to it by means of which-a suitable connection is formedwith one or the other vside of the device and the operatinglever ortreadle -l6--- That is to say, in some makes of automobiles theconnection or cable 16%- between the cut-out and the operating treadle-16- should be on the right of the cut-out, while in others 1 saidconnection should extend from the left thereof. The

.connection is made by means of a bent lever -17-, one end of which isfiat or in the :position ofthe said lever -17- with referl ence to theshaft is susceptible of a substantial range of adjustment, for example,the

:said disk -leihas a number of'openings 1.9- init, any one of which maybe eniployed to connect the dish -18- of the lever -17- and the positionof the lever will be on an angle accordingly, thus rendering moreaccurate and positive the operation of the fia-p. valve -A-lQ-Q A Ziheconnection `between the disks 14e- Vand --l8- is made by means of ascrew -24.-. Then not moved to the open position through pressure on thetreadle -l6-, the said flap valve is maintained in t-he closed positionby the tension of a springVA n420+. Y `Y As it is essential that thev.said spring be protected tronithe heat due to the passing of theexhaust product, and the lite and eilioiency thereofbeaccordinglyenhanced, the

said springl is'rmouiited away'izroin the out. Vout by ineansvoil an armLia-extending -roin the disk lei-W and to Vwhich one end guided totheoperating lever over suitable 'pulleys a's'niay'be required.

The

Vendsloi the housing; are-contracted Within the circumference of( thebody' in order to snugly tit around the exhaust pipe.

n'iannervof its operation, ,l elaiin: Y

Aout-out for the control o1" the exhaust Having deseribed my inventionandlthe 'products of gas engines-the saine Comprising-upper and lowerportions united .to forni bodysir-rounding ,the .exhaiusty-l-pipe, thelower body portion being extended Yslightly below the lower side of theVexhaust pipe and terminating in a bottoni.withenopening if V thereinWhich hes kclose to,l an openii-igin` said exhaust pipe, the lopening insaid bottoni bein@ inclosed 1at thejsidesandrone end by' a atfinarginalportion Whie'hfforins ag valve seat, and `ait tlieother end bytransverse concave portion forming `a'rshaft bear477V fr ing, and an armextensionol' an end ,of the said lowerportion, a ila-p Valve seatingupon" the side and end margins off said opening Y immediately belowtheropening in the -haust pipe,aV shet`t ;to which saidV valvei. Aunitedat one end, said sheithavinga` beering inV the said transverse fconeave:portion of said bottoin`r a perforated disk con!A Y nectible toeithere-nd offsaid shaftandhaying` an A:extension thererorngv e spring'V Ineoted to said ,extensionV and. tothe arm eX--v tension of the lowerbody portion,.andi an operating lever having; one end of disk forni fperforated Adislr.'

co-nneotible different positions `to fthe' said i EjiiRL'eRooKiiisj L Y'Y

